Miter-box.



No. 760,053. PATENTE-D MAY-1'7, 1904.. J. W. BEAMAN.

MITER BOX.

APPLICATION FILED FEB. 26, 1904.

N0 MODEL. 2 SHEETS-SHEET 1.

g z a 25 4 I //////A x; I L I l i l I, i I i l m i I l I i r l I t i i i I 1 L 1 f i i 5 i l i No. 760,053. PATENTED MAY 17, 1904. J. W. BEAMAN.

MITER BDX.

APPLIUATIOH FILED r1113. 26. 1904.

N0 MODEL. z SHEETS-SHEET 2.

f UNITED STATES Patented May 17, 1904.

PATENT OFFICE.

JOHN W. BEAMAN, OF MALOY, IOWA, ASSIGNOR OF ONF-I-IiAIiF TO W. T.

' SAMS, OF MALOY, IOWA.

MITER-BOX.

SPECIFICATION forming part of Letters Patent No. 760,053, dated. May 1'7, 1904;

Application filed February 26, 1904. Serial No. 195,440. (No model.)

To all whom, it may concern.-

Be it known that I, JOHN W. BEAMAN, a citizen of the United States, residing at Maloy, in

.the county of Ringgold and State of Iowa,

have invented a new and useful Miter-Box, of which the following is a specification.

This invention relates to improvements in miter-boxes, the objects in View being to provide a machine of this class which may be readily adjusted to make any out on anyjackrafter or rake-joint'on any facia or molding for any hip or valley roof of any desired rise or pitch of roof.

Other objects and advantages of the invention will appear in the following description, and the novel features thereof will be particularly pointed out in the claims.

Referring to the drawings, Figure 1 shows a top view of the machine with bottom board removed, showing a complete embodiment of the invention and the method of obtaining the graduations on the scale, so as to exactly fit the steel square. Fig. 2 is a front view. Fig. 3 is a transverse sectional view showing the hollow tube with shaft extending through it. Fig. 4 is a cross-sectional detail view of the saw-guide-carrying rod and tube.

Like numerals of reference indicate like parts in all the figures 0f the drawings.

Referring to the drawings by numerals, 1 designates the rear frame member of the miter-box, and 2 is the front frame member. Each of said frame members is preferably made from two wrought-metal strips, the upper strip being bent downwardly at its end portions and the under strip being also bent downwardly at its end portions, the end portions being spaced apart and then joined at their extreme ends and providing supportinglegs. The under strip of each frame member is at its intermediate portion spaced apart from the upper strip to accommodate the means for carrying the saw-guides, and said upper and under strips are adjacent to the offtegral with the transverse strips 3 3. The back-rest 14 may, as shown, be supported by integral vertical extensions of the strips 4 4.

6 is a tube beneath the platform or table 22. Secured exteriorly on the tube, near its rear end, by a set-screw 10 is a collar 11, carrying vertically-disposed trunnions 7 7, entering openings or bearings in the strips of the frame member 1, whereby said tube is pivoted, its outer free end being movable between the strips of the front frame member.

The saw-guide arms 8 8 are rigidly secured on the ends of a rod or shaft 9, which loosely occupies the tube 6, whereby said arms have a vertically-rocking adjustment in addition to a horizontal swinging adjustment by reason of the vertical axis of the tube.

13 is a pointer carried by the tube near its free end, the pointer being fastened on a collar 12, encircling the tube and secured in posi' tion thereon by a set-screw 15. The pointer extends over the are 5 and serves, with the scale, to indicate the different horizontal adjustments of the saw-guide.

The back-rest is provided intermediate of its ends with a recess, the walls of which are inclined to allow of the maximum rocked adjustment of the saw. In cases where the saw is held vertically or where the piece is relatively small I provide the false back-rest 16, which is placed in front of the back-rest 14 and held thereto by clamps 23 23. The slot .in false back-rest is relatively narrow and its walls are parallel to each other.

The arc scale .5 is employed to determine the angle of horizontal swinging adjustment. For ascertaining the angle of vertical rocking adjustment I employ an are 18, which is carried by and is therefore movable with the guide-arms and rod. The pointer-arm 19 is immovable, being fixed to the collar 12 on the tube 6. The pointer 20 is secured to the pointer-arm by a set-screw 21. The are 18 is An essential feature of my invention consists in dividing the arc scale by lmes drawn from the axis of movement of the saw-guide to divided inches on an imaginary line parallel with the back-rest and at a distance of one foot from said axis. Fig. 1 illustrates the method followed in forming the arc scale, the usual square being positioned with one leg at a right angle to the back-rest and the other parallel thereto. The outer edge of the parallel leg is brought to a position one foot from the axis 7 of the saw-guide, and the lines are then drawn from the axis to the divided inches on the parallel leg, said lines being indicated by dots and dashes in said Fig. 1. The scale on the are 18 is similarly laid off, the axis being the center of the rod or shaft 9. The advantages due to this feature of my invention will be apparent to any one skilled in the art to which the invention belongs. Not only is the use of the square dispensed with in determining the angle or angles of the saw-guide, but the chance of error is mini, The

mized even if the user be unskilled. scale divisions, moreover, enable the workman to after the cuts from those which are recognized as standard to meet unusual conditions, which alterations may be readily provided for by different adjustments of the saw-guide.

I claim as my invention 1. As a new article of manufacture, a miterbox having. a platform, a back-rest, a pivoted saw-guide, and an are for said guide said are carrying a scalethe radial divisions of which are on lines drawn from the axis of said guide to divided inches on an imaginary line parallel with said back-rest and at a distance of one foot from said axis.

2. As a new article of manufacture, a miterbox having a platform, a back-rest, a sawguide carrying a horizontally-swinging member pivoted in the plane of the back-rest, and a horizontal are for the free end of said member, said arc carrying a scale the divisions of which are on lines drawn radially from the axis of said guide to divided inches on an imaginary line parallel with said back-rest and at a distance of one foot from said axis.

3. As a new article of manufacture, a miterbox having a platform, a back-rest, a sawguide mounted to swing horizontally and rock vertically, said guide being vertically pivoted in the plane of the back-rest, a horizontal arc scale for the horizontal adjustment of the guide, the scale-divisionsbeing on lines drawn from said vertical axis to divided inches on an imaginary line parallel with said back-rest and at a distance of one foot from said axis, and a vertical arc scale for the rocking adjustment of the guide said vertical scale bearing divisions similar to those of the horizontal scale.

4. As a new article of manufacture, a miterbox comprising a base or platform and a sawguide-carrying arm mounted to swing in a horizontal and rock in a vertical plane, and an arc scale for each plane of movement,'the divisions of each of which are on lines drawn from the axis of movement to divided inches on an imaginary-horizontal line parallel with said base or platform .and at a distance ofv one foot from said. axis.

5. A miter-box having a platform and asupport therefor including side members each composed of two spaced-apartstrips,-a horizontally-swinging tube movableat its free end between the strips of one side member, a collar on the tube, vertical trunnions on thecollar. entering openings in the strips of the otherside member and affording the. pivot of said tube, a shaft rotatable in the tube, and saw guide-arms on the shaft.

6. A miter-box frame comprising front and back portions each made of twostrips arranged one above the. other andintermediately spaced apart to receive the saw-guide carrying means, the lower strips being bent upwardly and secured to the upper strips at each side of the intermediate portion, the end portions of both strips being first bent apart and then joined to form feet, and cross-pieces connecting the front and back portions.

7. A miter-box comprising in combination, a bed or platform, and saw-guide-carrying means capable of both swinging and rocking movements, a fixed back having a recess the angular sides of which conformto the limits of rocking movement of the guiding means, and a second back having a vertical slot and carrying clamps for detachably securing it to the first-named back.

p J. w. BEAMAN.

Witnesses I JAs. F. BRYAN, BENJAMIN FRIEND. 

